Chaeles widmer



(No Model.)

' C; WIDMER.

TAKE UP MBGHANISM FOR LOOMS.

N0. 355,670. Patented Jan. 4, 1887.

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UNITED STATES PATENT EEICE.

CHARLES WIDMEE, or NEW YORK, N. Y.

TAKE-UP MECHANISM FOR Loot/is.

SPECIFICATION forming part of Letters Patent No. 355,6'7'0Vdated` January 4, 1887.

Application filed November 23, 1885. Serial No. 183,709. (No model.)

To all whom it 11i/ay concern:

Be it known that I, CHARLES WIDMER. of New York, in the county of New York and State of New York, have invented a ce'rtain new and useful Improvement in TakeUp Mechanisms for Looms,of which the following vis a specification.

a plan or top view of a loom embodying my improvement, certain portions being broken away to save space. Fig. 2 is a vertical section thereof, taken at the plane of theline mx,

Fig. l; and Fig. 3 is a detail view thereof.

I have only shown such parts of a loom as are essential to an lunderstanding of my improvement.

A designates a driving shaft. It is journaled in suitable bearings in a frame, A', and

may have motion imparted to it in any convenient manner, as by belt and pulley. I have shown it, also, as provided with a balancewheel, B.

Upon the shaft A is mounted a bevel-gear wheel7 B, which meshes with another bevelgear wheel, C, mounted upon a shaft, D, journaled in bearings D upon the frame A. Upon the shaft D is mounted a cam, E, and eccentric F is also mounted upon said shaft. The eccentric F bears against an arm, F', which is rigidly affixed to a rock-shaft, G, near one end thereof. The rock-shaft G is journaled in bearings G upon the frame A. Upon the other end of the rock-shaftG is rigidly affixed another arm, H. The army H extends in the opposite direction to that in which the arm F extends, but is, as shown, in approximately the same vertical plane. There is a projection, a, upon the arm H, near the free end thereof. As here shown, said lprojection consists of a pin rigidly secured to said arm.

The projection a on the arm'lI is always in contact with an arm, I, hung loosely upon the hub of a clutch-wheel, J. The arm I is thus kept in contact with the arm H by means of a spring, l), secured at vone-end to the arm I and at the other end, as shown, to. a loop, e, upon the frame A. The arm I therefore follows the arm H in its to and fro movements, when the latter is swung by means ofthe rocking of the rock-shaft G. The spring P also tends to keep the arm F in contact with the eccentric F. The clutch-wheel J is tightly mounted upon a shaft, J, near one end thereof, which shaft is journalcd in bearings J2 on the frame A. A nut, c, on the shaft J prevents the arm I from moving off from the hub of the clutch-wheel. a rim, b, extending from one side thereof.

K designates a gripper, which is notched uponv the inner side near one end, and embraces the said rim b. The other end of said gripper, as hereshown, enters a' notch in the portion of the arm I which surrounds the hub ofthe clutch-wheel. A spring, d, is secured at one end to the arm I and at the other to the gripper K. This spring tends to keep the gripper constantly in engagement with the rim b of the clutch-Wheel and the aforesaid notch in the arm I. Vhen the arm I is moved in the direction of the arrows shown in Fig. 3, the gripper is canted in such manner as to cause it to grip the rim b, and therefore rotate' the clutch-wheel. When the arm I is moved in the oppositedirection, the grip of the gripper upon the rim b is released, and it may then slide freely upon the rim b. It is caused thus to slide by the spring d. Any movement of the clutch-wheel at this time is counteracted by means of a friction-brake, R. This friction-brake consists of a block of wood, f, or other like material, bearing against the side of the clutch-wheel, and the pressure of which thereon may be varied by means of a screw, g, fitting in a tapped hole in a bracket, h, on the bearing J2. Preferably a spring, i, will be arranged between the screw and the The clutch-wheel J has brake f. This spring may be loosely connected f to the brake by means of screws orpins extending through longitudinal slots in the spring, near the ends thereof, so that the ends of the spring may be slid upon the brake without becoming detached therefrom. v

Upon the shaft J is a worm, L. This worm engages withV a worm Wheel, L', mounted tightly upon a shaft, M, journaled in suitable IOO bearings in the frame of the loom and extending at approximate right angles to the shaft J. A take-up roller, N, is mounted upon the shaft M. Above the take-up roller Nis an idler-roller, N journaled in housings n. Fabric from the loom Yis fed forward by therollers N N 1 I have shown ahand-wheel, S, for operating t-he worm and wheel independently of the clutch. This often becomes necessary when it is desired to readj ust the woven fabric to the exact pick when the loom has been stopped and the fabric drawn away from the pick, in order to repair broken thread or for other cause. The delicate adjustment made possible by the worm and Wheel enables an oper-l ator to then return the fabric to the exact position it occupied previous to being drawn away, and therefore when the loom is again started there will appear no space between shuttle-threads, as is frequently the case when the adjustment is less perfect. This is very advantageous,particularly in narrow weaving.

In using the hand'wheel S, the gripper K is to be moved into such position that it will not grip the' rim b. The shaft J the worm L, and the hand-wheel S may be cast in one piece.

I employ an adjusting device for limiting the movement which shall be imparted to the arm I and through the mechanism described to the rollers N N. This device consists, as here shown, of a screw, O, fitting in a tapped hole in a portion of the frame A in such position that its inner end may be brought into the path of the projection a upon the arm H of the rock-shaft G when said arm is moved in a direction to cause the arm I to rotate the clutchwheel. Byadjusting this screw inward the swing of the arm H in said direction may be stopped before it has completed the full length thereof, which would otherwise be imparted to it through the medium of the eccentric F. Thus stopping the swing of the arm H causes the arm F to be held in such a position relative to the eccentric F that the eccentric will not come in contact therewith as soon as it otherwise would. The range of movement of the arm H, and consequently of the arm I, may

therefore, by means of the adjusting-screw O, be increased or decreased to any desired extent and with great nicety, so that the degree of rotation of the clutch-wheel, and thereby the feed which the feed-rollers N N shall impart to the goods, may be accurately regulated. lThe delicacy of feed of the goods is also greatly increased by the use of the worm and wheel.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a shaft, of an eccentric on'said shaft, a rock-shaft, anV arm on said rock-shaft adapted to be operated upon by the eccentric to rock the rockshaft and the arm on said rock-shaft, a clutch-wheel, a clutch operated by the last-mentioned arm on therockshaft,.an adjusting device for limiting the movement of the clutch, a shaft upon' which said A clutch is mounted', a worm on said shaft, a worm-wheel actuated by the said worm, and feed-rollers, substantially as specified.

2. The combination, with feedrollers, of a shaft upon which one of said feed-rollers is mounted, a worm-wheel upon said shaft, a shaft, a worm upon said last-mentioned shaft engaging said worm-wheel, a clutch-wheel on the worm-shaft, a clutch for operating the same, a rock-shaft, an arm on said rock-shaft vfor operating the clutch, an adjusting device for limiting the movement of the clutch, and mechanism, substantially such as described, whereby when the clutch is rendered inoperative the shaft upon which the worm is mounted may be rotated in either direction to rotate the feed-rollers, substantially as specified.

' 3. The combination of the shaft-D, the eccentric F, the shaft G, provided with the arm F', the arm H, also upon said shaft G, provided with the projections a, the arm I, the clutchwheel J, the gripper K, the spring d, the spring P, the shaft J', upon which said clutch-Wheel is mounted, the worm L,the worm-wheel L', and the roller N, substantially as specified.

CHAS. WIDMER.

Witnesses:

DANIEL H. DRIscoLL, Jas. R. BOWEN. 

